axohtml_macros/
lib.rs

1#![recursion_limit = "128"]
2#![cfg_attr(can_show_location_of_runtime_parse_error, feature(proc_macro_span))]
3
4extern crate proc_macro;
5
6use proc_macro::TokenStream;
7
8mod config;
9mod declare;
10mod error;
11mod html;
12mod ident;
13mod lexer;
14mod map;
15mod parser;
16mod span;
17
18/// Construct a DOM tree.
19///
20/// See the crate documentation for [`axohtml`][axohtml].
21///
22/// [axohtml]: https://docs.rs/axohtml/
23#[proc_macro]
24pub fn html(input: TokenStream) -> TokenStream {
25    let stream = lexer::unroll_stream(input.into(), false);
26    let result = html::expand_html(&stream);
27    TokenStream::from(match result {
28        Err(err) => error::parse_error(&stream, &err),
29        Ok((node, ty)) => match node.into_token_stream(&ty) {
30            Err(err) => err,
31            Ok(success) => success,
32        },
33    })
34}
35
36/// Construct a Dodrio node.
37///
38/// See the crate documentation for [`axohtml`][axohtml].
39///
40/// [axohtml]: https://docs.rs/axohtml/
41#[cfg(feature = "dodrio")]
42#[proc_macro]
43pub fn dodrio(input: TokenStream) -> TokenStream {
44    let stream = lexer::unroll_stream(input.into(), false);
45    let result = html::expand_dodrio(&stream);
46    TokenStream::from(match result {
47        Err(err) => error::parse_error(&stream, &err),
48        Ok((bump, node)) => match node.into_dodrio_token_stream(&bump, false) {
49            Err(err) => err,
50            // Ok(success) => {println!("{}", success); panic!()},
51            Ok(success) => success,
52        },
53    })
54}
55
56/// This macro is used by `axohtml` internally to generate types and
57/// implementations for HTML elements.
58#[proc_macro]
59pub fn declare_elements(input: TokenStream) -> TokenStream {
60    let stream = lexer::keywordise(lexer::unroll_stream(input.into(), true));
61    let result = declare::expand_declare(&stream);
62    TokenStream::from(match result {
63        Err(err) => error::parse_error(&stream, &err),
64        Ok(decls) => {
65            let mut out = proc_macro2::TokenStream::new();
66            for decl in decls {
67                out.extend(decl.into_token_stream());
68            }
69            out
70        }
71    })
72}
axohtml_macros/lib.rs

axohtml_macros/
lib.rs
